GB696040A - Separating n-propyl alcohol from secondary butyl alcohol by extractive distillation - Google Patents

Separating n-propyl alcohol from secondary butyl alcohol by extractive distillation

Info

Publication number
GB696040A
GB696040A GB11333/51A GB1133351A GB696040A GB 696040 A GB696040 A GB 696040A GB 11333/51 A GB11333/51 A GB 11333/51A GB 1133351 A GB1133351 A GB 1133351A GB 696040 A GB696040 A GB 696040A
Authority
GB
United Kingdom
Prior art keywords
alcohol
propyl alcohol
secondary butyl
mixture
per cent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB11333/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celanese Corp
Original Assignee
Celanese Corp
Celanese Corp of America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Celanese Corp, Celanese Corp of America filed Critical Celanese Corp
Publication of GB696040A publication Critical patent/GB696040A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/84—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by extractive distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

n-Propyl alcohol is separated from a mixture containing it and secondary butyl alcohol, by submitting the mixture to extractive distillation using diethyl benzene as auxiliary liquid, whereby n-propyl alcohol is obtained as overhead product, while the bottoms contain the secondary butyl alcohol in admixture with diethyl benzene. Between 4 to 10 volumes of diethyl benzene are fed to the fractionating column for each volume of alcohol mixture fed thereto; and a reflux ratio between 3 : 1 and 10 : 1 is employed. The process may be used for separating n-propyl alcohol from a crude fraction of the products obtained by oxidizing butane or a mixture of propane and butane. In an example a mixture containing 52 per cent by weight of n-propyl alcohol and 9 per cent by weight of secondary butyl alcohol, the remainder being substantially n- and isobutyl alcohols but also some acetal and carbonyl compounds, was fed continuously to the 5th plate from the base of a 30-plate column. A commercial mixture of the isomeric diethyl benzenes was fed to the 15th plate from the base of the column. The base and head of the column were maintained at 268 DEG and 208 DEG F respectively; and a reflux ratio of 5:1 was employed. The n-propyl alcohol withdrawn overhead contained only 1.27 per cent of secondary butyl alcohol, and amounted to 85.3 per cent of the n-propyl alcohol in the feed.
GB11333/51A 1950-05-16 1951-05-15 Separating n-propyl alcohol from secondary butyl alcohol by extractive distillation Expired GB696040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US696040XA 1950-05-16 1950-05-16

Publications (1)

Publication Number Publication Date
GB696040A true GB696040A (en) 1953-08-19

Family

ID=22090061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11333/51A Expired GB696040A (en) 1950-05-16 1951-05-15 Separating n-propyl alcohol from secondary butyl alcohol by extractive distillation

Country Status (1)

Country Link
GB (1) GB696040A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903552A1 (en) * 1968-05-08 1969-11-13 Diebold Vincent B Process for the production of alcohol from mixtures containing raw alcohol
US5897750A (en) * 1997-08-28 1999-04-27 Berg; Lloyd Separation of acetone from isopropanol-water mixtures by extractive distillation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903552A1 (en) * 1968-05-08 1969-11-13 Diebold Vincent B Process for the production of alcohol from mixtures containing raw alcohol
US5897750A (en) * 1997-08-28 1999-04-27 Berg; Lloyd Separation of acetone from isopropanol-water mixtures by extractive distillation

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